A complex asteroseismic study of the hybrid B-type pulsator $\nu$ Eridani

TL;DR

This paper performs a detailed seismic analysis of the B-type star $ u$ Eridani, fitting pulsation data and flux perturbation parameters to test stellar opacities, favoring OPAL data.

Contribution

It introduces complex asteroseismology as a method to simultaneously fit pulsational frequencies and nonadiabatic parameters for stellar modeling.

Findings

OPAL opacities are preferred over alternatives.

The study demonstrates the effectiveness of complex asteroseismology.

Results provide constraints on stellar opacity models.

Abstract

We present results of comprehensive seismic modelling of the B-type main-sequence pulsator $\nu$ Eridani, which consists in parallel fitting of the pulsational frequencies and corresponding values of the complex, nonadiabatic parameter $f$, defined by the bolometric flux perturbation. This kind of studies, which we call {\it complex asteroseismology}, provides a unique test of stellar opacities. Our results indicate a preference for the OPAL data.